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7. YTO Adjustment
7. YTO Adjustment
Assembly
Adjusted
Al4 frequency control assembly
Related
Performance
Tests
Frequency Span Accuracy
Frequency Readout Accuracy and Frequency Count Marker Accuracy
Description
The YTO main coil adjustments are made with the phase-lock loops disabled. The YTO
endpoints are adjusted to bring these points within the capture range of the main loop. The
YTO FM coil is adjusted to place the 300 MHz CAL OUTPUT signal at the center vertical
graticule in a 20 MHz span.
ADAPTER
SMA CABI
500MHz-
26.5 GH
Al4
FREO
CONTROL
Al5 RF
SPECTRUM
ANALYZER
Figure 2-13. YTO Adjustment Setup
Equipment
Microwave frequency counter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 5343A Option 001
Adapters
Type N (m) to BNC (f)
...........................................
1250-1476
Type N (f) to APC 3.5 (f) (Option 026
only).
........................
1250-1745
APC 3.5 (f) to APC 3.5 (f)
........................................
5061-5311
Cables
BNC,122cm(48in)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 10503A
SMA,61cm(24in)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...8120-1578
SK19
Adjustment Procedures 2-37